aboutsummaryrefslogtreecommitdiff
path: root/make.c
blob: 12764da84e6e6bc97941be0b3734756b13182b75 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include "cbs.h"
#include "src/compat.h"

#define CC           "cc"
#define CFLAGS       "-Wall", "-Wextra", "-Wpedantic", "-Werror", "-pipe"
#define CFLAGS_DEBUG "-DGRAB_DEBUG", "-g", "-ggdb3"
#ifdef __APPLE__
#	define CFLAGS_RELEASE "-O3"
#else
#	define CFLAGS_RELEASE "-O3", "-march=native", "-mtune=native"
#endif
#define PREFIX "/usr/local"

#define streq(a, b) (!strcmp(a, b))
#define cmdprc(c) \
	do { \
		int ec; \
		cmdput(c); \
		if ((ec = cmdexec(c)) != EXIT_SUCCESS) \
			diex("%s terminated with exit-code %d", *c._argv, ec); \
		cmdclr(&c); \
	} while (0)

static char *mkoutpath(const char *);

static bool Pflag;

int
main(int argc, char **argv)
{
	int opt;
	bool debug = false;
	cmd_t c = {0};

	cbsinit(argc, argv);
	rebuild();

	while ((opt = getopt(argc, argv, "dP")) != -1) {
		switch (opt) {
		case 'd':
			debug = true;
			break;
		case 'P':
			Pflag = true;
			break;
		default:
			fputs("Usage: make [-dP]\n", stderr);
			exit(EXIT_FAILURE);
		}
	}

	argc -= optind;
	argv += optind;

	if (argc > 0) {
		if (streq(*argv, "clean")) {
			cmdadd(&c, "rm", "-f", "grab");
			cmdprc(c);
		} else if (streq(*argv, "install")) {
			char *bin, *man;
			bin = mkoutpath("/bin");
			man = mkoutpath("/share/man/man1");
			cmdadd(&c, "mkdir", "-p", bin, man);
			cmdprc(c);
			cmdadd(&c, "cp", "grab", "git-grab", bin);
			cmdprc(c);
			cmdadd(&c, "cp", "man/grab.1", "man/git-grab.1", man);
			cmdprc(c);
		}
	} else {
		if (foutdated("grab", "src/grab.c", "src/da.h")) {
			for (int i = 0; i < 2; i++) {
				char buf[] = "-DGIT_GRAB=X";
				buf[sizeof(buf) - 2] = i + '0';

				cmdadd(&c, CC, CFLAGS);
				cmdadd(&c, buf);
				if (!Pflag)
					cmdadd(&c, "-DGRAB_DO_PCRE=1", "-lpcre2-posix");
				if (debug)
					cmdadd(&c, CFLAGS_DEBUG);
				else
					cmdadd(&c, CFLAGS_RELEASE);
				cmdadd(&c, "-o", i == 0 ? "grab" : "git-grab", "src/grab.c");
				cmdprc(c);
			}
		}
	}

	return EXIT_SUCCESS;
}

char *
mkoutpath(const char *s)
{
	char *p, *buf;

	buf = bufalloc(NULL, PATH_MAX, sizeof(char));
	buf[0] = 0;

	if (p = getenv("DESTDIR"), p && *p) {
		if (strlcat(buf, p, PATH_MAX) >= PATH_MAX)
			goto toolong;
	}

	p = getenv("PREFIX");
	if (strlcat(buf, p && *p ? p : PREFIX, PATH_MAX) >= PATH_MAX)
		goto toolong;
	if (strlcat(buf, s, PATH_MAX) >= PATH_MAX)
		goto toolong;

	return buf;

toolong:
	errno = ENAMETOOLONG;
	die(__func__);
}